JP2008013946A - Chemical solution dispenser - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a chemical solution dispenser which is arranged in a water tank of a flush toilet or the like, for constantly dispensing a chemical solution into the water tank, has a chemical holding section arranged in a closed-end cylindrical dispenser main body opening downward, at a predetermined height from a lower edge of the same, for mounting and holding a chemical, has a pipe-shaped water sucking channel having one end thereof opened to a portion above the chemical holding section and inside the dispenser main body, and a lower end thereof located outside the dispenser main body and above a lower edge of the dispenser main body, has drip ports via which water in the water sucking channel is sucked to an upper surface of the chemical holding section according to lowering of a water level in the dispenser main body, and via which the chemical solution prepared by melting the chemical in the water is dripped under the chemical holding section, and has a check valve means formed on an upper portion of the dispenser main body, for permitting discharge of air inside the dispenser main body in an outward direction, wherein the chemical solution dispenser eliminates a malfunction of the check valve means when splashed with water or the like. <P>SOLUTION: According to the structure of the chemical solution dispenser which has the check valve means formed therein, for discharging air in the dispenser main body in the outward direction, the check valve means is provided with a cover for avoiding splash of water or the like on the same. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a chemical liquid distributor that is set in a water tank such as a flush tank of a flush toilet and periodically distributes a chemical liquid such as a cleaning agent to water in the water tank.

  The water stored in the water tank of the flush toilet is flowed to the toilet bowl every time it is used, and flows along the entire inner surface of the toilet bowl. In view of this, there have been proposed a number of chemical liquid dispensing devices for regularly dispensing a chemical solution such as a cleaning agent into the water in the water tank and washing the toilet bowl each time water is flowed.

  For example, the bottomed cylindrical main body that opens downward is set in the water tank so that the opening at the lower end is located above the water surface in a state where the water in the water tank is drained, and the chemical solution is placed outside the water tank. Attach a chemical tank to store water, provide a liquid absorption pipe with one end opened at the top of the main body and the other end submerged in the chemical liquid in the chemical tank. What attached the stop valve is known (for example, refer to patent documents 1).

  In this case, when water is poured into the water tank and the water level rises, the water enters the main body through the opening at the lower end of the main body part and releases the air in the main body to the outside through the check valve, while the water level in the main body part also changes. To rise. When the water in the aquarium is drained, the water level in the aquarium descends and the water level in the main body also tends to descend. However, since air cannot be sucked from the outside into the main body due to the action of the check valve, the upper space portion in the main body becomes negative pressure. Then, the chemical solution in the chemical solution tank is sucked into the main body through the liquid absorption pipe. The sucked chemical solution falls in the main body and drops into the water in the main body. When the water level outside the main body part falls below the opening at the lower end of the main body part, air flows into the main body part from the opening, and the suction of the chemical liquid through the liquid absorption pipe is stopped. And this operation | movement is repeated regularly for every water absorption and drainage to a water tank, and a substantially constant amount of chemical | medical solution is sucked out from a chemical | medical solution tank to the main-body part side each time.

  In addition, a water storage tank portion opened near the lower end of the cup-shaped container is held in the cup-shaped container that opens downward. It is provided integrally with the container so as to be positioned at the top of the container, and the container and the water storage tank part are attached so as to be completely submerged in the water tank (for example, see Patent Document 2).

In this case, the water storage tank is provided with an air vent hole, and when the water level in the water tank rises, water does not enter the cup-shaped container, so that the medicine does not submerge, but the water tank has an air vent hole. Air is pushed out and filled with water. And if the water in a water tank is drained and a water level falls, the water in a water storage tank part will eject into an inside of a container from the opening by the effect | action of gravity. By setting the position and direction of the opening so that the ejected water is applied to the medicine, a part of the medicine is dissolved and the chemical liquid is dropped into the water tank.
Japanese Utility Model Publication No. 6-30284 (FIGS. 1 to 4) Japanese Patent Laid-Open No. 62-248725 (FIGS. 5 to 8)

  In order to remedy the above-mentioned conventional problems, Japanese Patent Application No. 2005-220865 has already been installed in a flush toilet or other water tank, and in a chemical liquid distribution device that regularly distributes chemical liquid into the water tank, a bottomed opening that opens downward A cylindrical device main body is provided, and a drug holding portion for placing and holding the drug is provided at a predetermined height from the opening at the lower end inside the device main body, and one end is located above the drug holding portion. A pipe-shaped water absorption passage portion that opens toward the inside of the device main body and that has a lower end outside the device main body and positioned above the lower end of the device main body. Water is sucked up on the upper surface of the drug holding part, and a dripping port is formed to drop a drug solution in which the drug is dissolved in the water to the lower side of the drug holding part. Release of And it means a chemical solution distributing apparatus, characterized in that the formation of the check valve means for permitting.

  However, if water or the like is applied to the check valve means from the outside, the check valve means may not function normally. If the check valve function does not function normally, water cannot be sucked into the apparatus main body, and a chemical solution cannot be generated.

  Then, this invention makes it a subject to provide the chemical | medical solution distribution apparatus which can eliminate the above-mentioned malfunction and can distribute a chemical | medical solution stably in a water tank in view of said problem.

  In order to solve the above-mentioned problems, a chemical liquid dispensing apparatus according to the present invention is a chemical liquid distribution apparatus that is mounted in a flush toilet or other water tank and periodically distributes the chemical liquid into the water tank, and has a bottomed cylindrical shape that opens downward. Provided with a medicine holding part for placing and holding the medicine at a predetermined height from the opening at the lower end, and having one end positioned above the medicine holding part. A pipe-shaped water absorption passage portion that opens toward the inside of the main body and has a lower end outside the device main body and positioned above the lower end of the device main body, and the water in the water absorption passage portion as the water level in the device main body decreases. Is sucked up by the upper surface of the drug holding part, and a dripping port is formed to drop the drug solution in which the drug is dissolved in the water below the drug holding part, and the air in the apparatus main body is released to the outside at the upper part of the apparatus main body. Check valve means to allow In that form, characterized in that the cover attached to prevent at least water can take from the outside to the check valve means.

  In the above configuration, when the water in the water tank is discharged, the water in the apparatus main body and the water absorption passage portion cannot move until the water surface in the water tank descends to the lower end position of the water absorption passage portion, and is maintained at a high water level. . When the water level in the water tank falls below the lower end of the water absorption passage part, the opening at the lower end of the water absorption passage part is exposed to the air. Descend. The water filled in the water absorption passage is sucked into the apparatus main body together with the air sucked from the lower end opening of the water absorption passage. Since the sucked water spreads on the medicine holding part, it penetrates into the lower surface of the medicine and a solution is generated. And the solution is dripped at the water in a water tank through a dripping port.

  By the way, if the check valve means is splashed with water, the check valve means may not function normally. If the check valve means does not function, water cannot be sucked in. Therefore, it is necessary to prevent water from being applied to the check valve means.

  As is clear from the above description, the present invention is provided with a cover so that the check valve means is not exposed to water. Therefore, the check valve means always functions normally, and the solution in which the medicine is dissolved by sucking water is dissolved. It can be generated stably.

  Referring to FIGS. 1 and 2, reference numeral 1 denotes a chemical liquid dispensing apparatus according to the present invention. The drug solution dispensing apparatus 1 includes a cylindrical apparatus body 2. Further, a lid 4 is detachably attached to the upper end portion of the apparatus main body 2, and the apparatus main body 2 becomes a bottomed cylindrical body with the lid 4 attached.

  The apparatus main body 2 has a hook 11 for attachment on the outer surface, and is set in the flash tank T by hooking the hook 11 on the peripheral wall of the flash tank T which is a water tank of a flush toilet. In addition, it attaches so that the opening 21 of the apparatus main body 2 may open toward the downward direction.

  Inside the apparatus main body 2, a horizontal medicine holding unit 6 is provided that is positioned above an intermediate position in the vertical direction. An annular positioning portion 61 is formed on the upper surface of the medicine holding portion 6. In addition, a plurality of dripping ports 62 are formed inside and outside the positioning portion 61. In the present embodiment, the metal mesh 7 is set in the positioning portion 61, and the medicine 8 is placed on the metal mesh 7.

  This wire mesh 7 is for ensuring an even space between the upper surface of the medicine holding part 6 and the lower surface of the medicine 8, and when water is sucked into the upper surface of the medicine holding part 6 as described later, The water is distributed evenly over the entire lower surface of the medicine 8.

  On the side wall of the apparatus main body 2, a spout 31 that opens above the medicine holding unit 6 is formed. The jet port 31 is connected to a pipe-shaped water absorption passage tube 3 attached to the outside of the apparatus main body 2. The opening 32 at the lower end of the water absorption passage tube 3 is set to be positioned above the opening 21 of the apparatus main body 2.

  By the way, the part which is a part of the positioning part 61 and opposes the ejection port 31 functions as the guard part 63, and prevents the water ejected from the ejection port 31 from being applied to the side surface of the medicine 8. Further, a water flow window 64 is formed between the guard part 63 and the upper surface of the medicine holding part 6, and water that has been ejected from the jet port 31 and hits the guard part 63 passes through the water flow window 64. It spreads over the entire lower surface of the drug 8.

  A check valve 5 is attached to the lid 4. Referring to FIG. 3, the check valve 5 is attached to an air vent hole 41 formed in the lid body 4, and a valve body portion 51 that can cover the air vent hole 41 from above, and a valve body portion 51. A shaft portion 52 extending downward from the center of the lower surface of the shaft portion and a retaining portion 53 formed at the lower end of the shaft portion 52 are configured. In addition, a gap is secured between the shaft portion 52 and the air vent hole 41, and when the pressure inside the apparatus main body 2 becomes higher than the surroundings with the lid 4 attached to the upper part of the apparatus main body 2, Air in the apparatus main body 2 can push up the valve body 51 through the air vent hole 41 and can be discharged to the outside. On the contrary, when the pressure in the apparatus main body 2 becomes lower than the surroundings, the valve body portion 51 closes the air vent hole 41 so that air is not sucked into the apparatus main body 2 from the outside.

  By the way, the lid 4 is formed in a quadrangular shape as shown in the figure, and is formed in a circular shape as shown in FIG. 4, and a screw portion is formed on the outer periphery of the upper end of the apparatus main body 2 so that the female screw portion inside the lid 4 is screwed. You may make it make it. In addition, since the above-described check valve 5 is very lightweight, if water or dust adheres to the upper surface of the lid 4, the check valve 5 may adhere to the lid 4 and the check valve 5 may not function. Occurs. Therefore, it is desirable to cover the lid 4 with a transparent cover 42 as shown in FIG. A protrusion 4 a is formed on the outer peripheral surface of the lid 4 as a slip stopper when the lid 4 is rotated, and a trough 4 b sandwiched between the protrusions 4 a becomes an air passage when the cover 42 is attached.

  A state in which water is poured into the water tank T with the above configuration will be described with reference to FIG. The water level of the water tank T is at LV11 immediately after being drained. When water is poured from this state, water flows into the device main body 2 from the opening 21 until the water level reaches the same height LV12 as the opening 32 of the water absorption passage pipe 3, and the water level rises in the device main body 2 Is exhausted from the opening 32 through the water absorption passage tube 3. When the water level in the water tank T becomes higher than LV12, the air in the apparatus main body 2 is exhausted by opening the check valve 5. When the water level in the water tank T reaches the full water level LV13, the water injection into the water tank T is automatically stopped. In this state, the water level in the apparatus main body 2 and the water level in the water absorption passage pipe 3 are both substantially the same as those of the LV 13.

  6 and 7, when drainage from the water tank T is started, the water level in the water tank T is lowered. Since the opening 32 remains submerged until the water level in the water tank T falls to LV12, air cannot enter the apparatus main body 2 and the water absorption passage pipe 3, and the water surface S1 and water absorption in the apparatus main body 2 can be prevented. Both the water levels S2 in the passage pipe 3 remain unchanged at LV13.

  When the water level in the water tank T further falls below the LV 12, the opening 32 of the water absorption passage tube 3 comes out of the water surface and is opened to the air. Then, the water surface S1 in the apparatus main body 2 rapidly descends, and the water in the water absorption passage pipe 3 is sucked into the apparatus main body 2 vigorously with the descent. Therefore, the sucked water is ejected from the ejection port 31 and hits the guard part 63. The hit water falls on the medicine holding part 6, reaches the lower surface of the medicine 8 through the water passage window 64, and dissolves the medicine 8. And the chemical | medical solution produced | generated by the melt | dissolution is dripped from the dripping port 62, and is distributed in the water tank T. FIG.

  Although not shown in the above embodiment, a space for setting the fragrance in the vicinity of the medicine 8 may be secured, or the fragrance may be set on the lower surface of the lid 4. As described above, when the water level in the water tank T rises and falls, the air in the main body is discharged and sucked again, so that the air in the apparatus main body 2 is ventilated. If the fragrance is set as described above, the air containing the scent component can be released from the apparatus main body 2.

  In addition to the above-described embodiment, for example, the forms shown in FIGS. 8 and 9 may be adopted. In this embodiment, the apparatus main body 2 is divided into upper and lower parts, and the apparatus main body is bonded and formed by the main body lower part 2a and the main body upper part 2b. The medicine holding portion 6 was formed at the upper end portion of the main body lower portion 2 a, and the dripping port 62 was formed outside the positioning portion 61. The positioning part 61 is divided on the way, and the chemical solution flows from the inside to the outside of the positioning part 61 through the divided part.

  A plurality of protrusions 65 are formed integrally with the medicine holding part 6 inside the positioning part 61. The drug 8 is supported by the plurality of protrusions 65 to form a space between the upper surface of the drug holding unit 6 and the lower surface of the drug 8. And the jet nozzle 31 was opened upwards, and the water absorption passage pipe | tube 3 was inserted and attached from the downward direction of the jet nozzle 31. FIG.

  A bag-like space 22 is formed in the main body upper portion 2 b above the jet port 31, and water jetted from the jet port 31 into the main body upper portion 2 b once enters the space 22. The water was allowed to flow from the lower outlet 23 of the space 22 to the upper surface of the drug holding unit 6. In this embodiment, a rubber thin film is used as the check valve 5a.

  By the way, when attaching to the flash tank T in each of the above embodiments, it is necessary to fix the medicine 8 at a position where the medicine 8 is not submerged when the water level of the flash tank T rises most. Therefore, a float may be attached to the outer periphery of the apparatus main body 2 or the apparatus lower part 2a, and the apparatus may be raised when the water level rises without being fixed to the flash tank T, so that the medicine 8 may not be submerged. However, in such a configuration, it is only necessary to suspend the device from the upper end of the flash tank T with a flexible thing such as a string so that the device is not lowered below a predetermined height when the water surface is lowered by drainage. .

  In addition, this invention is not limited to an above-described form, You may add a various change in the range which does not deviate from the summary of this invention. For example, as shown in FIG. 10, two or more water absorption passage pipes 3 may be provided. As described above, when a plurality of the water absorption passage pipes 3 are provided, the water level when the flash tank T is full is low, and even when the water absorption amount per water absorption passage pipe 3 is small when draining, the necessary amount of water can be obtained. Can be sucked up as a total. In addition, when the water absorption amount is desired to be increased, if the water absorption passage tube 3 is thickened, water may be returned during the water absorption and cannot be absorbed well. However, if the number of the water absorption passage tube 3 is increased, such a problem is caused. The amount of water absorption can be increased without causing water.

  In FIG. 4, the cover 4 is covered with the cover 42 so that the cover 4 is not exposed to water or dust. However, as shown in FIG. The check valve 5 may be attached to the stepped portion 43 so that the water on the upper surface of the lid 4 does not directly contact the check valve 5. Further, it is desirable to attach a cover 44 to the stepped portion 43 so that water and dust are not reliably applied to the check valve 5. In addition, the notch 43a was formed in the step part 43, and the notch 44a was formed in the cover 44, so that the inside of the cover 44 was not sealed with the cover 44 attached to the step part 43.

  Note that the amount of dissolution varies depending on the temperature of the water in the tank sprayed onto the medicine 8. That is, the amount of dissolution increases when the water temperature is relatively summer, and conversely, the amount of dissolution decreases during winter. Therefore, a flow rate adjusting member shown in FIG. 12 was attached. The flow rate adjusting member is mounted on the water absorption passage pipe 3 and is composed of a main body portion 9 that can be moved up and down along the water absorption passage tube 3 and a U-shaped bar 91 fixed to the main body portion 9. The tip of the U-shaped bar 91 is inserted into the interior 30 of the water supply passage tube 3 from the opening 32 at the lower end of the water absorption passage tube 3. The diameter of the U-shaped bar 32 is narrow so that a predetermined gap is formed between the inner wall of the water supply passage pipe 3.

  As shown in the figure, a large amount of water is sucked into the water supply passage pipe 3 when the insertion amount of the U-shaped bar 91 is relatively small. If the main body portion 9 is moved upward to increase the insertion amount of the U-shaped bar 91, the amount of water sucked into the water supply passage pipe 3 is reduced. Since the amount of inhalation can be increased or decreased by moving the main body 9 up and down in this way, it is desirable to adjust the position of the main body 9 according to the season.

  By the way, in the present embodiment, an example using the solid medicine 8 in a narrow sense has been shown. However, as described in JP-A-2005-61129, a cartridge filled with a concentrated chemical solution is used in a broad sense. As a medicine, it may be placed on the medicine holding unit 6 and used. In the above-described embodiment, the medicine holding unit 6 is horizontal, but the upper surface of the medicine holding unit 6 may be drained by inclining, for example, about 5 degrees.

The figure which shows the structure of one embodiment of this invention Broken perspective view showing the structure of the device Diagram showing check valve structure Figure showing the cover to be attached to the lid Diagram showing the process of rising water level Diagram showing the progress of the water level Diagram showing the state under the medicine droplet The figure which shows the chemical | medical agent holding | maintenance part in other embodiment. Sectional view showing the configuration Broken perspective view showing a structure in another embodiment The figure which shows the other form of a lid | cover Diagram showing mechanism for adjusting water absorption

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Chemical solution distribution apparatus 2 Apparatus main body 3 Water absorption passage pipe 4 Cover body 5 Check valve 6 Drug holding part 7 Wire mesh 8 Drug 65 Protrusion

Claims (1)

A chemical distribution device that is installed in a flush toilet or other water tank and periodically distributes the chemical liquid in the water tank, and includes a bottomed cylindrical device body that opens downward, and inside the device body, A medicine holding part for placing and holding the medicine is provided at a predetermined height from the opening at the lower end, one end is located above the medicine holding part and opens toward the inside of the apparatus main body, and the lower end is the outside of the apparatus main body. In addition, a pipe-shaped water absorption passage portion located above the lower end of the apparatus main body is provided, and the water in the water absorption passage section is sucked up to the upper surface of the medicine holding section as the water level in the apparatus main body is lowered, and the drug is absorbed in the water. In the case where a dripping port for dripping the dissolved chemical solution below the medicine holding part is formed, and a check valve means for allowing the air in the apparatus body to be released to the outside is formed on the upper part of the apparatus body, Less external valve stop means Chemical dispensing apparatus characterized by also fitted with a cover to prevent such water.

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